#!/usr/bin/bash       //脚本语言开头

function myfun()
{
  cnt=1
  while[ $cnt -le 10 ]
  do 
    echo "hello $cnt"
    let cnt++
  done
}


echo "hello 1"
echo "hello 1"
echo "hello 1"
echo "hello 1"
echo "hello 1"
echo "hello 1"
ls -a -l
myfun
